Reed-detaching device for looms.



5 SHEETS-SHEET l.

PATENTED FEB. 7, 1905.

APPLICATION FILED AUG. 26, 1902.

W MQMIGHAEL & M CAMPBELL REED DETAGHING DEVICE FOR LOOMS.

WTNEBSEE! la/wk A4 PATENTED FEB. '7, 1905. W. MOMIGHAEL & M. CAMPBELL.

REED DETAOHING DEVICE FOR LOOMS.

APPLICATION FILED AUG. 26, 1902.

5 SHEETS-SHEET 2.

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WITNESSES:

No. 782,168. PATENTED FEB. 7, 1905. W. MOMIGHAEL & M. CAMPBELL.

REED DETAGHING DEVICE FOR LOOMS.

APPLICATION rum) AUG. 26, 1002.

s sums-sum s.

No. 782,168. PATENTED FEB. 7, 1905. W. MQMIGHAEL & M. CAMPBELL. REED DETAOHING DEVICE FOR LOOMS.

APPLICATION FILED AUG. 26, 1902.

5 SHEETS-SHEET 4.

\X/ITNESSES:

No. 782,168. 7 PATENTED FEB. 7, 1905. W. MOMIGHAEL & M. CAMPBELL. REED DETAGHING DEVICE FOR LOOMS.

APPLICATION FILED AUG. 26, 1902.

6 SHEETS-SHEET 5.

(iii JJ E W/ a L fi WW? .0 e c Y w W a. a a k in 6 W ja/Vmzak, Q/M/ UNITED STATES Patented February 7, 1905.

PATENT OFFICE.

IVILLIAM MOMIOHAEL, OF IVOONSOOKET, RHODE ISLAND, AND MALCOLM CAMPBELL, OF BOSTON, MASSAOHUS 1 S, ASSIG-NORS TO \YOONSOUKE" MACHINE AND PRESS COMPANY, OF OONSOCKET, RHODE ISLAND, A CORPORATION OF RHODE ISLAND.

REED-DETACHING DEVICE FOR LOOIVlS.

SPECIFICATION forming part of Letters Patent No. 782,168, dated February 7, 1905.

Application filed August 26,1902. Serial No. 121,020.

CAMPBELL, of Boston, in the county of Suffolk and State of Massachusetts, haveinvented certain new and useful Improvements in Reed- Detaching Devices for Looms, of which the following is a specification.

This invention has relation to looms, and more particularly to the apparatus therein employed for releasing the reed to prevent smashes in case the shuttle should for any reason fail 01' step in its flight through the shed. It may be explained that in the weaving of cloth it sometimes happens that the shuttle fails to reach a box before the lay arrives in position to beat in the filling,and the result is that the shuttleis caught in the shed and breaks out a large portion of the warp, this breaking being popularly known to artisans as a shuttle smash.

The object of the present invention is to provide certain improvements in contrivances of the character indicated for the purpose of rendering their operation more accurate, increasing their simplicity of construction and efficiency in operation,and in so locating them that there will be no interference whatever with the flight of the shuttle from box to box.

In accordance with the present invention the reed is held yieldingly in place by the reed-cap, which is mounted to swing upon an axis longitudinal of the lay-beam, so that in case a shuttle is caught between the reed and the cloth the cap will yield under the pressure and permit the reed to drop backward l from the lay.

In conjunction with the cap the illustrated embodiment of the invention is provided with a lock therefor from which the said cap is free at all times except when the lay reaches a forward position and is just about to beat the filling into the end of the shed, at which time the lock is moved to an operative position so as to engage the cap and securely hold the reed as it performs its function in the weaving of the cloth. The lock may be formed and operated in a variety of ways, several of which we have illustrated in the accompanying drawings; but in every case its operation should be so timed that the reed is not socurely held against movement until the shuttle has properly completed its flight and is released prior to the next flight thereof.

On the accompanying drawings, Figure 1 represents a portion of a loom embodying the invention and illustrates a part of the standard, a lay, its swords, and our improved appliance for permitting the detachment of the reed by the shuttle. Fig. represents the same parts and illustrates a shuttle as passing through the shed. Fig. 3 indicates a portion of the mechanism in plan view. Fig. represents one end of the device in front elevation. Fig. 5 represents a section on line 5 5 of Fig. 3, showing in full and in dotted lines the operation of the device. Fig. 6 illustrates the reed-cap and the lock in perspective view. Fig. 7 represents in perspective view the reedcap detached. Figs. 8 and 9 represent the reed as locked in position and released, respectively. Figs. IO and I1 represent different positions assumed by one form of locking device which we may employ. Figs. .12, 13, and H represent different means for actuating the lock at the proper time.

Referring to the drawings, 4 indicates the lay, supported by the swords 1/ and oscillated by the pitman c from the usual crank-shaft (l. The top of the lay is covered with the usual race-plate u and is provided in the rear of said plate with a groove 1!" for the reception of the lower cross-bar v of the reed c.

f indicates a reed-cap, which is provided in its lower face with a groove f" for the reception of the upper cross-bar if of the reed w. This reed-cap may be formed of wood or any other suitable material. If formed of wood, its ends are each inserted in a casting f. Each of the castings has a stud or trunnion f which is journaled in a socket in a support g. These supports may be secured to the swords if the latter are elevated above the lay, or else they may be attached by bolts to uprights g at the ends of the lay. The trunnions f are located above and in front of the groove-f in the cap, so that when the cap is rocked on the axis of said trunuions it is elevated, so as to release the top cross-bar of the reed and permit the reed to drop rearwardly therefrom, as shown in Fig. 9. The cap, however, is held yieldingly in its operative position by either a helical spring it or by, a flat spring a, or both, as shown in Fig. 8. The helical spring is attached at its lower end to a screw-eye 7t, projecting rearwardly from the lay, and at its upper end to an arm or stop f projecting first transversely and then longitudinally of the cap from the casting or end piece f of the reed-cap. In case the spring 2' be relied upon to perform this f unction it is secured to the under face of the transversely-projecting portion of the arm f", and its forward end extends under a lug g" on the support g. While the tension of the spring or springs is sufiicient to hold the reed-cap yieldingly in place to prevent the dislocation of the reed when the shuttle is passing from box to box, yet it is weak enough to permit the pressure of the shuttle in case it be caught between the reed and the fabric to force the reed rearwardly and the cap upwardly to permit said reed to drop out from the lay.

As previously indicated, any one of a number of locks may be employed in connection with the cap to lock it against movement when the lay has reached a predetermined point of its beat. Referring to Figs. 1 to 11, it will be seen that the lock, as indicated at 7', consists of a hooked latch fulcrumed at its lower end on a pivot j, projecting longitudinally of the lay from the upright 9 The upper hooked end of the lock is adapted to take over the arm or stop f of the reed-cap. The natural tendency of the latch is to assume the position shown in Fig. 2 during the forward beat of the lay, owing to its inertia and to the manner in which it is pivoted upon its fulcruming-stud. For the purpose of operating the lock an angle-lever Z: is pivoted on a pintle k, passing through ears 9 on the support 9, as shown in Fig. 6. This lever passes rearwardly and then downwardly, being provided at its angle with a pin 76, passing through an inclined slot 7' in the lock j. When the angle-lever is hanging loosely in the position shown in Fig. 2, it assists in holding the lock in its inoperative position; but when the lower end of the angle-lever is lifted the pin it, sliding in the slot f, forcesthe hooked end of the lock over the top stop f and effectively locks the cap against movement. The anglelever is provided itself with a locking member consisting of a shoulder or projection H, which when the said lever is moved to operative position, as shown in Fig. 1, (full lines,)

will engage the arm or stop f at its lower rear edge and prevent the movement of the cap. In this connection it may be stated that if deemed advisable the lock y' may be omitted and the locking portion Z5 of the anglelever 7; be relied upon, and again it will be as equally understood that the angle-lever l: need not be provided with the locking portion and that entire reliance may be placed upon the lock j.

For actuating the angle-lever, or, as it may be termed, the actuator for the lock, several devices may be employed. We may attach to the lower free end of the said lever a chain on, the other end of which is secured to an adjustable arm m, fastened to the standard of the loom. The chain is of such a length that it does not draw upon the lever until the lay has almost reached the forward end of its beat, so that the actual engagement of the lock with the reed-cap does not take place until sufficient time has elapsed for the shuttle to have left the shed in case the loom is running normally. This would be its usual operation; but if the shuttle should stop before leaving the shed the forward beat of the lay would result in the shuttle being caught between the fabric and the reed prior to the time the chain in became taut, and consequently the reed would be forced outward rearwardly, the cap yielding to permit it so to do. In lieu of the chain a flexible strap 0, preferably of leather, and a spring may be employed, as shown in Fig. 12, or again the actuator may be made in the form of a relatively straight arm rigidly attached to an apertured extension q, as illustrated in Fig. 13. event the locking member on the actuator would take the form of a lug, as shown at in. The outer end of the extension q would be connected by a link q with the pitman c, and the movement of the pitman about its pivotal connection with the lay would effect the operation of the actuator.

In Fig. 14 there is another embodiment of the invention in which the actuator is provided with an elongated extension 9*, whose end rests upon a cam .9, formed on the crankshaft (Z. With this form of device the oscillation of the actuator by the cam would cause its locking member if to engage the reed-cap at the proper time and hold the reed against movement and would also cause said actuator to operate lock jand move it to operative position.

It will be obvious that various changes may be made in the apparatus thus disclosed without departing from the spirit and scope of the invention.

Having thus explained the nature of the invention and explained a way of constructing and using the same, although without having attempted to set forth all of the forms in which it may be made or all of the modes of its use, we declare that what we claim is 1. A loom having a lay, a movable reed, a

In this 'movable reed-cap yieldingly holding said reed in position, and means for locking said reedeap when the lay reaches a predetermined point in its forward beat.

2. A loom having a lay, a movable reed, a movable reed-cap 'ieldingly holding said reed in position, a lock for said cap, and means for automatically actuating the look when the lay reaches a predetermined point in its forward beat.

A loom having a lay, a reed, and an oscillatory reed-cap adapted to automatically release the reed for preventing a shuttle smash.

i. A loom having a lay, a movable reed, an oscillatory reed-cap, and an automatic lock for said cap.

A loom having a lay, a movable reed, a rocking reed-cap, means for y-ieldingly holding said cap from rocking, and an automatic lock for said cap.

6. A loom having a lay, a reed detachable from said lay, a yielding reed-cap which is adapted to permit the total dislocation of the reed from the lay by the shuttle, and means for automatically locking said cap after the shuttlein thenormal runningof the loom has completed its tlight, and releasing it prior to the subsequent flight of said shuttle.

T. A loom having a lay, a movable reed, a rocking reed-cap, a pivoted hooked lock, and means for automatically actuating said lock.

8. A loom having a lay, a movable reed, a rocking reed-cap, a pivoted hooked lock,

means for yieldingly holding said reed-cap from rocking and means for actuating said lock.

9. A loom having a lay, a movable reed, a rocking reed-cap, means for yieldingly holding said reed-cap from rocking, and a lock pivoted to the lay for locking said cap.

10. A loom having a lay, a movable reed, a rocking reed-cap, means for yieldingly holdingsaid reed-cap from rocking; a lock for said cap, and a lever for actuating said lock.

11. A loom having a grooved lay, a reed resting loosely in said groove, a rocking reedcap having a groove to receive said reed, and means whereby said reed-cap will permit the dislocation of said reed if a shuttle should fail to complete its flight in the appointed time.

12. A loom having a grooved lay, a reed resting loosely in said groove, a rocking reedcap having a groove to receive said reed, means whereby said reed-cap will permit the dislocation of said reed it a shuttle should fail to complete its flight in the appointed time, and means for locking said reed-cap prior to the reed beating in the tilling in the normal running of the loom.

In testimony'whereof we have afiixed our signatures in presence of two witnesses.

WILLI AM MCMICH A EL. M ALCOLM CAMPBELL.

\Vitnesses:

Geo. R. SMITH, BYRON l.n \rnn. 

